buttonset screwing up modal

Dear jQuery UI Team,

First of all, thank you so much for making my life easier. I am generally very happy with how simple it is to make and customize cool things using jQuery UI, but there's one thing that I can't figure out for the life of me:

I have four modal dialogs containing forms on my site. One of them has a set of three radio buttons, which I UI'ed out to work like a toggle bar. The buttons themselves work fine, but as soon as you click one, the field containing the jQuery-generated buttons for that dialog (Submit, Close) expands to over twice it's height and makes the top of the form inaccessible. I have tried applying the buttonset through other DOM means, jury-rigging the lower margin of the buttonset to be negative, and I'm out of ideas.

Check it out:

http://www.restorationdivision.com/new.html

Thanks,

Peter